Upholstery types available:Xtreme Plus: fire retardant (class 1) - washableInter/Vene™ Anti-Bacterial: anti-bacterial/microbial - fire retardantAnti-Bacterial Vinyl: effective against MRSA and other bacteria - BS 5852 Ignition Source 5 BS 7176 Medium HazardDeep foam padding ensures comfort in both the seat and the back of the chairMaximum user weight of 254 kg2 year warrantyPressure relieving foam can be added to this chair if ordered at the same time for factory fitting. Call 0800 954 9001 and quote 601-144 for more details.